🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.2

Radius: 10.7

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.61 AU - 0.77 AU

Year: 382 Days

Day: 13.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 76,954,361 km

• M1: 133,142 km (0.099 R)
• M2: 500,106 km (0.088 R)
• M3: 1,286,841 km (0.057 R)
• M4: 1,652,458 km (0.109 R)
• M5: 2,452,208 km (0.098 R)
• M6: 3,079,323 km (0.099 R)
• M7: 3,523,479 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.4

Radius: 10.6

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.17 AU - 1.79 AU

Year: 1201 Days

Day: 6.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,954,361 km

• M1: 132,245 km (0.049 R)
• M2: 763,996 km (0.047 R)
• M3: 1,119,441 km (0.078 R)
• M4: 2,327,593 km (0.054 R)
• M5: 3,471,269 km (0.091 R)
• M6: 4,010,270 km (0.092 R)
• M7: 5,038,157 km (0.096 R)
• M8: 5,784,950 km (0.065 R)
• M9: 6,989,961 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 183.2

Radius: 14.5

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 2.49 AU - 2.51 AU

Year: 2636 Days

Day: 8 Hours

Environment

Temp: -204 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,954,361 km

• M1: 180,265 km (0.114 R)
• M2: 712,385 km (0.072 R)
• M3: 2,206,419 km (0.051 R)
• M4: 3,035,191 km (0.111 R)
• M5: 4,400,122 km (0.087 R)
• M6: 5,418,285 km (0.117 R)
• M7: 5,872,016 km (0.084 R)
• M8: 6,856,370 km (0.083 R)
• M9: 8,337,089 km (0.044 R)
• M10: 9,153,146 km (0.038 R)
• M11: 10,476,488 km (0.065 R)
• M12: 11,745,078 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744.7

Radius: 10.8

Gravity: 6.38 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 3.08 AU - 3.4 AU

Year: 3889 Days

Day: 8.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 76,954,361 km

• M1: 134,339 km (0.099 R)
• M2: 846,724 km (0.093 R)
• M3: 1,415,196 km (0.115 R)
• M4: 1,793,828 km (0.068 R)
• M5: 2,299,618 km (0.105 R)
• M6: 2,644,292 km (0.093 R)
• M7: 3,059,875 km (0.053 R)
• M8: 4,001,893 km (0.103 R)
• M9: 4,871,505 km (0.114 R)
• M10: 6,093,570 km (0.095 R)
• M11: 7,342,263 km (0.067 R)
• M12: 8,421,762 km (0.103 R)
• M13: 9,604,034 km (0.101 R)
• M14: 10,131,516 km (0.118 R)
• M15: 10,550,390 km (0.116 R)
• M16: 11,467,574 km (0.036 R)
• M17: 12,484,690 km (0.105 R)
• M18: 13,560,897 km (0.114 R)
• M19: 15,072,584 km (0.104 R)
• M20: 16,009,515 km (0.119 R)
• M21: 17,516,714 km (0.086 R)
• M22: 22,889,372 km (0.094 R)
• M23: 24,798,989 km (0.075 R)
• M24: 26,025,542 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 380.5

Radius: 10.8

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 3.13 AU - 3.85 AU

Year: 4348 Days

Day: 6.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 76,954,361 km

• M1: 134,339 km (0.03 R)
• M2: 524,789 km (0.095 R)
• M3: 877,840 km (0.112 R)
• M4: 1,488,349 km (0.107 R)
• M5: 1,934,001 km (0.105 R)
• M6: 2,667,180 km (0.089 R)
• M7: 4,253,666 km (0.053 R)
• M8: 4,893,346 km (0.091 R)
• M9: 5,337,652 km (0.113 R)
• M10: 5,755,180 km (0.112 R)
• M11: 6,110,325 km (0.107 R)
• M12: 7,047,705 km (0.087 R)
• M13: 8,524,535 km (0.08 R)
• M14: 9,059,946 km (0.116 R)
• M15: 9,847,130 km (0.083 R)
• M16: 12,802,586 km (0.054 R)
• M17: 13,362,830 km (0.041 R)
• M18: 14,283,156 km (0.098 R)
• M19: 15,090,536 km (0.094 R)
• M20: 16,142,209 km (0.036 R)
• M21: 16,906,953 km (0.075 R)
• M22: 19,104,695 km (0.049 R)
• M23: 20,905,255 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.7

Radius: 14

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 3.74 AU - 5.8 AU

Year: 6947 Days

Day: 9 Hours

Environment

Temp: -227 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 76,954,361 km

• M1: 175,179 km (0.105 R)
• M2: 786,586 km (0.096 R)
• M3: 1,670,859 km (0.045 R)
• M4: 2,335,372 km (0.106 R)
• M5: 2,899,955 km (0.109 R)
• M6: 10,489,055 km (0.057 R)
• M7: 11,611,488 km (0.118 R)
• M8: 14,094,962 km (0.103 R)
• M9: 18,312,275 km (0.109 R)
• M10: 21,738,366 km (0.087 R)
• M11: 24,770,565 km (0.039 R)
• M12: 31,974,002 km (0.077 R)
• M13: 34,107,567 km (0.085 R)
• M14: 37,020,985 km (0.1 R)
• M15: 37,483,542 km (0.038 R)
• M16: 39,132,709 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830

Radius: 11

Gravity: 6.86 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 4.43 AU - 6.47 AU

Year: 8484 Days

Day: 6.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 76,954,361 km

• M1: 138,079 km (0.099 R)
• M2: 502,050 km (0.111 R)
• M3: 1,193,791 km (0.057 R)
• M4: 1,931,458 km (0.048 R)
• M5: 2,525,511 km (0.11 R)
• M6: 3,037,286 km (0.064 R)
• M7: 3,617,277 km (0.112 R)
• M8: 4,999,561 km (0.068 R)
• M9: 5,878,748 km (0.04 R)
• M10: 6,337,415 km (0.074 R)
• M11: 7,011,951 km (0.049 R)
• M12: 8,112,693 km (0.083 R)
• M13: 9,706,658 km (0.114 R)
• M14: 10,706,271 km (0.111 R)
• M15: 15,465,278 km (0.105 R)
• M16: 16,273,107 km (0.05 R)
• M17: 19,017,330 km (0.087 R)
• M18: 23,079,660 km (0.116 R)
• M19: 23,603,103 km (0.102 R)
• M20: 24,492,911 km (0.111 R)
• M21: 25,312,857 km (0.081 R)
• M22: 26,056,957 km (0.081 R)
• M23: 26,815,568 km (0.053 R)
• M24: 28,977,706 km (0.095 R)
• M25: 32,981,843 km (0.094 R)
• M26: 34,319,248 km (0.117 R)
• M27: 35,116,006 km (0.105 R)
• M28: 36,392,824 km (0.099 R)
• M29: 36,746,323 km (0.054 R)
• M30: 37,460,204 km (0.082 R)
• M31: 39,657,498 km (0.099 R)
• M32: 41,169,334 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 736.8

Radius: 7.8

Gravity: 12.11 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 7.59 AU - 9.91 AU

Year: 17260 Days

Day: 22.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 76,954,361 km

• M1: 97,239 km (0.054 R)
• M2: 370,105 km (0.117 R)
• M3: 1,596,957 km (0.093 R)
• M4: 2,099,307 km (0.098 R)
• M5: 2,702,785 km (0.041 R)
• M6: 3,280,981 km (0.088 R)
• M7: 3,613,985 km (0.082 R)
• M8: 4,380,525 km (0.106 R)
• M9: 4,925,211 km (0.028 R)
• M10: 5,945,917 km (0.109 R)
• M11: 6,700,638 km (0.095 R)
• M12: 7,055,933 km (0.076 R)
• M13: 7,470,618 km (0.103 R)
• M14: 10,662,738 km (0.117 R)
• M15: 11,147,585 km (0.089 R)
• M16: 14,443,674 km (0.083 R)
• M17: 14,887,232 km (0.085 R)
• M18: 15,957,904 km (0.064 R)
• M19: 16,512,015 km (0.036 R)
• M20: 18,337,408 km (0.073 R)
• M21: 19,387,884 km (0.089 R)
• M22: 19,837,126 km (0.087 R)
• M23: 20,110,143 km (0.073 R)
• M24: 24,614,983 km (0.115 R)
• M25: 26,767,547 km (0.104 R)
• M26: 29,159,767 km (0.118 R)
• M27: 29,987,791 km (0.06 R)
• M28: 33,457,265 km (0.037 R)
• M29: 35,288,492 km (0.104 R)
• M30: 40,011,895 km (0.116 R)
• M31: 40,886,893 km (0.09 R)
• M32: 50,689,593 km (0.064 R)
• M33: 64,703,323 km (0.086 R)
• M34: 67,128,454 km (0.074 R)
• M35: 68,778,369 km (0.083 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 865.7

Radius: 7.2

Gravity: 16.7 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 7.09 AU - 10.97 AU

Year: 18095 Days

Day: 22.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 76,954,361 km

• M1: 89,609 km (0.102 R)
• M2: 338,690 km (0.101 R)
• M3: 642,074 km (0.095 R)
• M4: 1,000,511 km (0.093 R)
• M5: 1,276,219 km (0.059 R)
• M6: 1,813,276 km (0.086 R)
• M7: 2,313,531 km (0.099 R)
• M8: 2,902,348 km (0.093 R)
• M9: 3,164,294 km (0.106 R)
• M10: 3,499,393 km (0.043 R)
• M11: 3,735,908 km (0.104 R)
• M12: 4,014,608 km (0.116 R)
• M13: 5,387,169 km (0.109 R)
• M14: 7,620,216 km (0.118 R)
• M15: 8,590,209 km (0.096 R)
• M16: 10,106,832 km (0.098 R)
• M17: 10,773,141 km (0.111 R)
• M18: 11,992,364 km (0.052 R)
• M19: 12,463,896 km (0.109 R)
• M20: 15,716,004 km (0.118 R)
• M21: 16,526,825 km (0.085 R)
• M22: 20,523,930 km (0.088 R)
• M23: 21,393,991 km (0.087 R)
• M24: 24,365,155 km (0.085 R)
• M25: 25,012,465 km (0.093 R)
• M26: 27,368,482 km (0.088 R)
• M27: 30,859,797 km (0.083 R)
• M28: 32,516,892 km (0.085 R)
• M29: 33,038,540 km (0.03 R)
• M30: 34,501,757 km (0.06 R)
• M31: 35,044,348 km (0.064 R)
• M32: 38,857,000 km (0.061 R)
• M33: 63,525,539 km (0.116 R)
• M34: 64,545,497 km (0.093 R)
• M35: 69,377,658 km (0.058 R)
• M36: 75,351,400 km (0.059 R)
• M37: 76,723,961 km (0.081 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 405 - 10,913 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit